usleep for Windows.

usleep.c

void usleep(DWORD waitTime){
	LARGE_INTEGER perfCnt, start, now;

	QueryPerformanceFrequency(&perfCnt);
	QueryPerformanceCounter(&start);

	do {
		QueryPerformanceCounter((LARGE_INTEGER*) &now);
	} while ((now.QuadPart - start.QuadPart) / float(perfCnt.QuadPart) * 1000 * 1000 < waitTime);
}

https://gist.github.com/ngryman/6482577?permalink_comment_id=2637845#gistcomment-2637845
'''

Use a waitable timer. This code above creates a spinlock.

portable c++11:

#include
#include `
std::this_thread::sleep_for(std::chrono::microseconds(usec));

portable boost for old compilers:

#include <boost/thread/thread.hpp>
#include <boost/date_time/posix_time/posix_time.hpp>
boost::this_thread::sleep(boost::posix_time::microseconds(usec));

using plain Win32API:

void usleep(unsigned int usec)
{
HANDLE timer;
LARGE_INTEGER ft;

ft.QuadPart = -(10 * (__int64)usec);

timer = CreateWaitableTimer(NULL, TRUE, NULL);
SetWaitableTimer(timer, &ft, 0, NULL, NULL, 0);
WaitForSingleObject(timer, INFINITE);
CloseHandle(timer);

}

'''